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| 1 | Liquefaction macrophenomena in the great Wenchuan earthquake显示文摘On May 12,2008 at 14:28,a catastrophic magnitude Ms 8.0 earthquake struck the Sichuan Province of China.The epicenter was located at Wenchuan(31.00oN,103.40oE).Liquefaction macrophenomena and corresponding destruction was observed throughout a vast area of 500 km long and 200 km wide following the earthquake.This paper illustrates the geographic distribution of the liquefaction and the relationship between liquefaction behavior and seismic intensity,and summarizes the liquefaction macrophenomena,including sandboils and waterspouts,ground subsidence,ground fi ssures etc.,and relevant liquefaction features.A brief summary of the structural damage caused by liquefaction is presented and discussed.Based on comparisons with liquefaction phenomena observed in the 1976 Tangshan and 1975 Haicheng earthquakes,preliminary analyses were performed,which revealed some new features of liquefaction behavior and associated issues arising from this event.The site investigation indicated that the spatial non-uniformity of liquefaction distribution was obvious and most of the liquefi ed sites were located in regions of seismic intensity VIII.However,liquefaction phenomena at ten different sites in regions of seismic intensity VI were also observed for the fi rst time in China mainland.Sandboils and waterspouts ranged from centimeters to tens of meters,with most between 1 m to 3 m.Dramatically high water/sand ejections,e.g.,more than 10 m,were observed at four different sites.The sand ejections included silty sand,fi ne sand,medium sand,course sand and gravel,but the ejected sand amount was less than that in the 1976 Tangshan earthquake.Possible liquefaction of natural gravel soils was observed for the fi rst time in China mainland. | Chen Longwei Yuan Xiaoming Cao Zhenzhong Hou Longqing Sun Rui Dong Lin Wang Weiming Meng Fanchao Chen Hongjuan | 2009 | Earthquake Engineering and Engineering Vibration2009，8，2： | 14 |
| 2 | Benzene containing polyhydroxyalkanoates homo-and copolymers synthesized by genome edited Pseudomonas entomophila显示文摘Microbial synthesis of functional polymers has become increasingly important for industrial biotechnology.For the first time,it became possible to synthesize controllable composition of poly(3-hydroxyalkanoate)(P3HA)consisting of 3-hydroxydodecanoate(3HDD)and phenyl group on the side-chain when chromosome of Pseudomonas entomophila was edited to weaken itsβ-oxidation.Cultured in the presence of 5-phenylvaleric acid(PVA),the edited P.entomophila produced only homopolymer poly(3-hydroxy-5-phenylvalerate)or P(3HPhV).While copolyesters P(3HPhV-co-3HDD)of 3-hydroxy-5-phenylvalerate(3HPhV)and 3-hydroxydodecanoate(3HDD)were synthesized when the strain was grown on mixtures of PVA and dodecanoic acid(DDA).Compositions of 3HPhV in P(3HPhV-co-3HDD)were controllable ranging from 3%to 32%depending on DDDA/PVA ratios.Nuclear magnetic resonance(NMR)spectra clearly indicated that the polymers were homopolymer of P(3HPhV)and random copolymers of 3HPhV and 3HDD.Their mechanical and thermal properties varied dramatically depending on the monomer ratios.Our results demonstrated the possibility to produce tailor-made,novel functional PHA using the chromosome edited P.entomophila. | SHEN Rui CAI LongWei MENG DeChuan WU LinPing GUO Kai DONG GuoXing LIU Lei CHEN JinChun WU Qiong CHEN GuoQiang | 2014 | Science China(Life Sciences)2014，57，1： | 4 |
| 3 | Effects of fish meal replacement with Chlorella meal on growth performance,pigmentation,and liver health of largemouth bass(Micropterus salmoides)显示文摘Chlorella meal is a potential protein source for aquafeeds.However,the physiological response of carnivorous fish fed Chlorella meal remains elusive.This study evaluated the effects of replacing dietary fish meal with Chlorella meal on growth performance,pigmentation,and liver health in largemouth bass.Five diets were formulated to replace dietary fish meal of 0%(C0,control),25%(C25),50%(C50),75%(C75),and 100%(C100)with Chlorella meal,respectively.Total 300 fish(17.6±0.03 g)were randomly assigned to 15 tanks(3 tanks/group).Fish were fed the experimental diet twice daily for 8 weeks.The increased dietary Chlorella meal quadratically influenced the final body weight(FBW),weight gain rate(WGR),specific growth rate(SGR),and feed intake(FI),which were significantly lower in the C100 group than in the other groups(P<0.05).The feed conversion ratio(FCR)increased linearly or quadratically with dietary Chlorella meal.Dietary Chlorella meal linearly or quadratically increased the lutein content of plasma,liver,and dorsal muscle of largemouth bass(P<0.05).Compared to the C0 group,all supplemented Chlorella meal groups significantly improved the yellowness(b*)of the dorsal body(1.5 to 2.0 fold),abdominal body(1.5 to 1.8 fold),and dorsal muscle(3.8 to 5.4 fold)of largemouth bass(P<0.05).In addition,compared to the C0 group,the liver vacuolation area of fish was significantly increased in the C75 and C100 groups(P<0.05).Transcriptional levels of apoptosis-related genes of b-cell lymphoma-2(bcl2),caspase-9-like(casp9),and caspase-3a(casp3)were markedly upregulated(0.9 to 1.6 fold)in the C100 group compared to the C0 group(P<0.05).Based on the quadratic regression analysis between FBW,WGR,or SGR and dietary Chlorella meal level,largemouth bass had the best growth when replacing 31.7%to 32.6%of fish meal with 15.03%to 15.43%dietary Chlorella meal.The present results indicated that dietary supplementation with Chlorella meal(11.85%to 47.45%)significantly enhanced the pigmentation;however,total replacement of fish meal(40%)with Chlorella meal(47.45%)caused growth retardation,apoptosis,and liver damage in largemouth bass. | Longwei Xi Qisheng Lu Yulong Liu Jingzhi Su Wen Chen Yulong Gong Dong Han Yunxia Yang Zhimin Zhang Junyan Jin Haokun Liu Xiaoming Zhu Shouqi Xie | 2022 | Animal Nutrition2022，，3： | 2 |
| 4 | Measurements of Wind Loads on Side-by-Side Semi-Submersibles in A Wind Tunnel显示文摘The multi-body system has been a popular form for offshore operations in terms of high efficiency.The wind effects are crucial which directly affect the relative positions of floating bodies and operating security.In this study,the aerodynamic characteristics for two coupled semi-submersibles were analyzed in a wind tunnel to fill the gaps in literature related to the wind sheltering on offshore platforms.The influences of separation distance were also investigated.According to the results,substantial shielding effects were observed and wind forces on the shielded vessel decreased dramatically:a reduction in the transverse force could be up to 74%.Moreover,the longitudinal wind load was amplified by the platform abreast in a side-by-side configuration.As expected,the interference level became more pronounced with a decreasing separation distance.For cases in which wind interaction decayed rapidly with distance,logarithmic functions were preferable for describing the relationship between them.Whereas linear fitting was reasonable for the transverse wind force when there was still evident sheltering at a quite large distance.The length of shielding area was another important factor that there was approximately a linear relationship between it and the shielding level for two platforms in close proximity at various wind attack angles.Based on the two parameters,a preliminary wind loads estimation method considering shielding effects was proposed.This approach can aid the industry to have a qualitative assessment of wind sheltering especially at early stages. | DONG Qing GUO Xiao-xian YANG Jian-min LU Hai-ning HUANG Longwei | 2021 | China Ocean Engineering2021，35，4： | 1 |
| 5 | Uniform carbon layer coated Mn3O4nanorod anodes with improved reversible capacity and cyclic stability for lithium ion batteries显示文摘 | WANG Changbin YIN Longwei XIANG Dong | 2012 | ACS Applied Materials and Interfaces2012，4，： | 1 |
| 6 | Effects of biotic and abiotic factors on forest biomass fractions显示文摘The extent to which key factors at the global scale influence plant biomass allocation patterns remains unclear.Here,we provide a theory about how biotic and abiotic factors influence plant biomass allocation and evaluate its predictions using a large global database for forested communities.Our analyses confirm theoretical predictions that temperature,precipitation,and plant height and density jointly regulate the quotient of leaf biomass and total biomass,and that they have a much weaker effect on shoot(leaf plus stem)biomass fractions at a global scale.Moreover,biotic factors have larger effects than abiotic factors.Climatic variables act equally on shoot and root growth,and differences in plant body size and age,as well as community species composition,which vary with climate in ways that drown out the variations in biomass fractions.The theory and data presented here provide mechanistic explanations of why climate has little effect on biomass fractions. | Renfei Chen Jinzhi Ran Weigang Hu Longwei Dong Mingfei Ji Xin Jia Jingli Lu Haiyang Gong Muhammad Aqeel Shuran Yao Lizhe An Jin-Sheng He Karl J.Niklas Jianming Deng | 2021 | National Science Review2021，8，10： | 0 |
| 7 | Characterization of mesenchymal stem cells in human fetal bone marrow by single-cell transcriptomic and functional analysis显示文摘Bone marrow mesenchymal stromal/stem cells (MSCs) are a heterogeneous population that can self-renew and generate stroma,cartilage, fat, and bone. Although a significant progress has been made toward recognizing about the phenotypic characteristics ofMSCs, the true identity and properties of MSCs in bone marrow remain unclear. Here, we report the expression landscape of humanfetal BM nucleated cells (BMNCs) based on the single-cell transcriptomic analysis. Unexpectedly, while the common cell surfacemarkers such as CD146, CD271, and PDGFRa used for isolating MSCs were not detected, LIFR+PDGFRB+ were identified to bespecific markers of MSCs as the early progenitors. In vivo transplantation demonstrated that LIFR+PDGFRB+CD45-CD31-CD235a-MSCs could form bone tissues and reconstitute the hematopoietic microenvironment (HME) effectively in vivo. Interestingly, wealso identified a subpopulation of bone unipotent progenitor expressing TM4SF1+CD44+CD73+CD45-CD31-CD235a-, which hadosteogenic potentials, but could not reconstitute HME. MSCs expressed a set of different transcription factors at the different stagesof human fetal bone marrow, indicating that the stemness properties of MSCs might change during development. Moreover,transcriptional characteristics of cultured MSCs were significantly changed compared with freshly isolated primary MSCs. Ourcellular profiling provides a general landscape of heterogeneity, development, hierarchy, microenvironment of the human fetal BMderivedstem cells at single-cell resolution. | Ping Zhang Ji Dong Xiaoying Fan Jun Yong Ming Yang Yunsong Liu Xiao Zhang Longwei Lv Lu Wen Jie Qiao Fuchou Tang Yongsheng Zhou | 2023 | Signal Transduction and Targeted Therapy2023，8，4： | 0 |
| 8 | Sedimentary Processes and Depositional Characteristics of Coarse-grained Subaqueous Fans along Steep Slopes in a Lacustrine Rift Basin:A Case Study from the Dongying Depression,Bohai Bay Basin,China显示文摘Coarse-grained subaqueous fans are vital oil and gas exploration targets in the Bohai Bay basin,China.The insufficient understanding of their sedimentary processes,depositional patterns,and controlling factors restricts efficient exploration and development.Coarse-grained subaqueous fans in the Yong′an area,Dongying Depression,are investigated in this study.These fans include nearshore subaqueous fans,and sublacustrine fans,and their sedimentary processes,depositional patterns and distribution characteristics are mainly controlled by tectonic activity and paleogeomorphology.Nearshore subaqueous fans developed near the boundary fault during the early–middle deposition stage due to strong tectonic activity and large topographic subsidence.Early sublacustrine fans developed at the front of the nearshore subaqueous fans in the area where the topography changed from gentle to steep along the source direction.While the topography was gentle,sublacustrine fans did not develop.During the late weak tectonic activity stage,late sublacustrine fans developed with multiple stages superimposed.Frequent fault activity and related earthquakes steepened the basin margin,and the boundary fault slopes were 25.9°–34°.During the early–middle deposition stage,hyperpycnal flows triggered by outburst floods developed.During the late deposition stage,with weak tectonic activity,seasonal floods triggered hyperpycnal flows,and hybrid event beds developed distally. | YANG Baoliang QIU Longwei YANG Yongqiang Kouassi Louis KRA DONG Daotao Danish KHAN | 2023 | Acta Geologica Sinica(English Edition)2023，97，2： | 0 |
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